Add 12/49 and 28/20
1st number: 12/49, 2nd number: 1 8/20
12/49 + 28/20 is 403/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
12/49 = 12 × 20/49 × 20 = 240/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
28/20 = 28 × 49/20 × 49 = 1372/980 - Add the two like fractions:
240/980 + 1372/980 = 240 + 1372/980 = 1612/980 - 1612/980 simplified gives 403/245
- So, 12/49 + 28/20 = 403/245
In mixed form: 1158/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49+28/20 12/49+56/20 12/98+28/20 12/49+28/40 36/49+28/20 12/49+84/20 12/49+28/60 60/49+28/20 84/49+28/20